FG2βββ
l2β+Fβ
l3βFG1βββ
(l4ββl1β)β=1,3 | mal Nenner
FG1βββ
(l4ββl1β)=1,3β
(FG2βββ
I2β+Fβ
l3β)
FG1βββ
(l4ββl1β)=1,3β
FG2βββ
I2β+1,3β
Fβ
l3β
FG1βββ
(l4ββl1β)β1,3β
FG2βββ
I2β=1,3β
Fβ
l3β
(FG1βββ
(l4ββl1β)β1,3β
FG2βββ
I2β)/(1,3β
l3β)=F